CN116217038A - Sludge drying method of closed sludge drying heat pump unit - Google Patents
Sludge drying method of closed sludge drying heat pump unit Download PDFInfo
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- CN116217038A CN116217038A CN202310110760.7A CN202310110760A CN116217038A CN 116217038 A CN116217038 A CN 116217038A CN 202310110760 A CN202310110760 A CN 202310110760A CN 116217038 A CN116217038 A CN 116217038A
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- drying
- forming box
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- 239000010802 sludge Substances 0.000 title claims abstract description 157
- 238000001035 drying Methods 0.000 title claims abstract description 106
- 230000007246 mechanism Effects 0.000 claims abstract description 90
- 238000001125 extrusion Methods 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 3
- 238000005469 granulation Methods 0.000 abstract description 15
- 230000003179 granulation Effects 0.000 abstract description 15
- 238000007493 shaping process Methods 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 19
- 235000017491 Bambusa tulda Nutrition 0.000 description 19
- 241001330002 Bambuseae Species 0.000 description 19
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 19
- 239000011425 bamboo Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to the field of comprehensive utilization of municipal sludge, in particular to a sludge drying method of a closed sludge drying heat pump unit, which comprises a frame and a forming box arranged on the frame, wherein a drying mechanism is arranged at the side of the forming box, and a first extrusion mechanism and a granulating cylinder are arranged on the forming box; the granulating cylinder is provided with a plurality of forming holes and a plurality of baffles; the first extrusion mechanism is positioned at the top of the granulating cylinder and is in transmission connection with the granulating cylinder; the bottom in the forming box is provided with a U-shaped filter screen matched with the granulating cylinder. The mode of extruding the shaping hole on the granulation cylinder is carried out through the first extrusion mechanism, so that partial water in the sludge can be discharged in advance when the sludge is shaped and granulated, the time required for drying the sludge subsequently is reduced, the efficiency of drying the sludge is improved, the energy consumption of a drying mechanism is reduced, and meanwhile, due to the arrangement of pre-extrusion drainage, the required drying mechanism subsequently is reduced, so that the occupied space of equipment is reduced and the cost is input.
Description
Technical Field
The invention relates to the field of comprehensive utilization of municipal sludge, in particular to a sludge drying method of a closed sludge drying heat pump unit.
Background
With the acceleration of urban sewage treatment process, a great amount of byproducts, namely urban sludge, are generated while urban sewage treatment capability is greatly improved, if the sludge is improperly treated, environmental pollution is caused, for example, leachate generated by the sludge can cause pollution of soil and underground water, malodorous gas emitted by the sludge and sludge particles can cause air pollution, and finally harm is caused to organisms. The water content of municipal sludge is generally about 80%, but the organic matter content reaches 40% -60%, so that the municipal sludge has higher recycling potential.
In the prior art, a closed heat pump sludge drying system is generally adopted, a scroll compressor is used as a heat pump driving source, sludge is sent to a forming device through a spiral conveying device to cut the sludge into strips, then the strips of sludge are conveyed into a drying box, a net-shaped conveyor belt is arranged in the drying box, the conveyor belt drives the sludge to move in the drying box, supersaturated vapor produced in the drying process enters a heat pump evaporator, is cooled and dehumidified and enters a heat pump condenser to be heated, and is led into the drying box again after being led into the drying box through a fan to be circularly reciprocated, the structure ensures that the heat loss in the drying process is smaller, the energy consumption level in the drying process can be effectively reduced, but the structure also has the problems of large occupied area and large input cost, for example, the Chinese patent application CN202111226423.1 discloses a heat pump sludge drying device which comprises a heat pump body, a drying cylinder, a differentiation component and a rotation component, the invention utilizes the hydraulic cylinder to push the extrusion plates to mutually approach and mutually separate in the extrusion cavity, can rapidly extrude the sludge in the extrusion cavity through the discharge channel, and the electric control second electric push rod moves reciprocally and circularly to drive the cutter to cut off the extruded sludge, thereby realizing granulation and striping of the sludge, facilitating subsequent drying, avoiding the condition of poor drying uniformity caused by the relatively concentrated sludge, and rotating the rotary cylinder in the drying cylinder under the cooperation of the rotary component, accelerating the drying efficiency of the sludge, realizing the stirring work of the sludge under the cooperation of the stirrer, avoiding the condition of concentrating the sludge, but having longer drying time for the sludge, under the condition of stirring after the sludge is formed, the sludge is easy to break into powder, and the sludge is unfavorable for being paved on a conveyor belt of a drying mechanism in the follow-up process.
Disclosure of Invention
According to the sludge drying method of the closed sludge drying heat pump unit, the extrusion mechanism extrudes the forming holes in the granulating cylinder, so that partial water in the sludge is discharged in advance when the sludge is formed and granulated, the time required for drying the sludge subsequently is reduced, the efficiency of drying the sludge is improved, the energy consumption of the drying mechanism is reduced, and meanwhile, due to the arrangement of pre-extrusion drainage, the required drying mechanism subsequently is reduced, the occupied space of the whole equipment is reduced, and the investment of cost is reduced.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
a closed sludge drying heat pump unit comprises a frame and a forming box arranged on the frame, wherein a drying mechanism is arranged at the side of the forming box, and an extrusion mechanism and a granulating cylinder are arranged on the forming box;
the granulating cylinder can rotate and is positioned in the forming box, the axis of the granulating cylinder is arranged in a horizontal state, an opening is formed at one end of the granulating cylinder, which is close to the drying mechanism, and the granulating cylinder is provided with a plurality of forming holes which are equidistantly encircling the axis of the granulating cylinder and a plurality of baffles which extend along the axis of the granulating cylinder and are fixedly connected to the outer wall of the granulating cylinder;
the extrusion mechanism is positioned at the top of the granulating cylinder, can slide along the radial direction of the granulating cylinder, is used for extruding the sludge received between two adjacent baffles, and is in transmission connection with the granulating cylinder;
the bottom in the forming box is provided with a U-shaped filter screen matched with the granulating cylinder.
Preferably, all baffles are hollow structures, and the inner walls of two adjacent baffles are provided with filter membranes for removing water in the sludge.
Preferably, the bottom of baffle is kept away from the open-ended one end of prilling section of thick bamboo and is provided with the delivery port, the inside of prilling section of thick bamboo is provided with the drainage box, be provided with the outlet pipe on the drainage box and with the same just one-to-one drain pipe of delivery port quantity, keep away from the open-ended one end on the prilling section of thick bamboo and set up the rotation axis, the rotation axis is the rotatable connection of horizontality in the shaping incasement, the rotation axis is hollow setting, drainage box fixed connection keeps away from open-ended one end in the inside of prilling section of thick bamboo, and one of them one end of outlet pipe runs through and is connected with the drainage box through the inside of rotation axis, the other end and the outside water pumping mechanism rotation of outlet pipe are connected, the equidistance encircles and sets up on the drainage box.
Preferably, the bottom of the baffle is obliquely arranged, and one end of the interior of the baffle, which is close to the opening of the granulating cylinder, is higher than one end of the baffle, which is far away from the opening of the granulating cylinder.
Preferably, the extrusion mechanism comprises an extrusion plate, a mounting plate and two guide rods, wherein the two guide rods are arranged at the bottom of the forming box in a vertical state and can slide, the extrusion plate is fixedly connected to the bottoms of the two guide rods in a horizontal state, the mounting plate is fixedly connected to the tops of the two guide rods, elastic pieces are sleeved on the tops of the two guide rods, and the mounting plate is in transmission connection with the granulating cylinder.
Preferably, the mounting plate is provided with a transmission component in transmission connection with the granulating cylinder.
Preferably, the upper part of the forming box is provided with an air inlet pipe connected with the drying mechanism.
Preferably, a discharging pipe extending towards the drying mechanism is arranged on the granulating cylinder and is rotationally connected with the granulating cylinder, and a spiral blade for driving the sludge to move towards the discharging pipe is arranged inside the granulating cylinder.
Preferably, the outer side of the material discharging pipe is sleeved with a gear ring, and a driving mechanism for driving the gear ring to rotate is arranged at the top of the forming box.
A sludge drying method of a closed sludge drying heat pump unit is applied to the closed sludge drying heat pump unit, and comprises the following steps:
s1, putting sludge into a forming box by an external spiral feeding mechanism, enabling the sludge to fall on a granulating cylinder after entering the forming box, driving a baffle on the outer wall of the granulating cylinder to rotate by rotation of the granulating cylinder, and driving the sludge to rotate in the forming box by the baffle;
s2, when the sludge moves to the bottom of the forming box, the filter screen can remove part of water in the sludge;
s3, when the sludge moves to the top of the forming box, the extruding mechanism slides along the radial direction of the granulating cylinder, so that the sludge received between the two baffles is extruded, and the extruded sludge can be extruded from the forming holes on the granulating cylinder due to the limitation of the baffles at the two sides, so that the sludge enters the inside of the granulating cylinder in a strip shape or a granular shape;
s4a, repeating the steps S2 and S3 until the sludge is completely extruded into the granulating cylinder;
s4b, the sludge in the granulating cylinder rotates along with the granulating cylinder, and finally enters the drying mechanism from the opening of the granulating cylinder.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by means of the extrusion mechanism for extruding the forming holes on the granulating cylinder, partial water in the sludge is discharged in advance when the sludge is formed and granulated, so that the time required for drying the sludge subsequently is reduced, the efficiency of drying the sludge is improved, the energy consumption of the drying mechanism is reduced, meanwhile, due to the arrangement of pre-extrusion drainage, the drying mechanism required subsequently is reduced, the occupied space of the whole equipment is reduced, and the investment of cost is reduced;
2. according to the invention, through the arrangement of the transmission connection of the extrusion mechanism and the granulating cylinder, the cost is reduced, compared with the extrusion mode in the prior art, the continuous extrusion of the sludge is not realized, so that a mechanism for cutting off the sludge is not required to be additionally arranged on equipment, the shape of the sludge can be changed in cooperation with the rotation of the granulating cylinder, the operation is convenient, when the extrusion mechanism fails to extrude all the sludge for a single time, the sludge can continue to rotate in the forming box along with the movement of the granulating cylinder after being left in the two baffles, and the sludge can be thrown out under the action of gravity and centrifugal force, so that the water is further discharged with the sludge, the problem of blocking forming holes is avoided, and the stability of the equipment is improved.
Drawings
FIG. 1 is a diagram of an example of conventional municipal sludge drying;
FIG. 2 is a schematic diagram of a three-dimensional structure of a closed sludge drying heat pump unit;
FIG. 3 is a top view of a closed sludge drying heat pump assembly;
FIG. 4 is a schematic cross-sectional view of a closed sludge drying heat pump unit;
FIG. 5 is a schematic perspective view of a forming box, an extrusion mechanism and a granulating cylinder in a closed sludge drying heat pump unit;
FIG. 6 is a schematic perspective view of a prilling cylinder in a closed sludge drying heat pump unit;
FIG. 7 is a schematic cross-sectional view of a prilling cylinder in a closed sludge drying heat pump unit;
fig. 8 is an enlarged view at a in fig. 3;
fig. 9 is an enlarged view at C in fig. 6;
FIG. 10 is an elevation view of a prilling cylinder in a closed sludge drying heat pump unit;
FIG. 11 is a schematic perspective view of an extrusion mechanism in a closed sludge drying heat pump unit;
fig. 12 is a schematic diagram of a third perspective structure of an extrusion mechanism in a closed sludge drying heat pump unit;
fig. 13 is an enlarged view at B in fig. 4.
The reference numerals in the figures are:
1-a frame;
11-forming box; 111-a feed inlet; 112-a drain port; 113-a filter screen; 114-an air inlet pipe;
12-a drying mechanism;
2-a granulating cylinder;
21-forming holes;
22-baffle; 221-a water outlet;
23-a drain box; 231-outlet pipe; 232-a drain pipe;
24-opening;
25-discharging pipe; 251-a discharge hole;
26-helix leaves;
27-a gear ring;
28-a drive mechanism; 281-mounting; 282-a rotary drive motor; 283-gear; 284-mounting a shaft; 285-synchronous belt; 29-a rotation axis;
3-an extrusion mechanism;
31-squeeze plate; 311-raised strips;
32-a guide rod; 321-elastic members;
33-mounting plate; 331-a fixed shaft;
34-a transmission assembly; 341-connecting rods; 342-eccentric; 343-drive shaft.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
As shown in fig. 2 to 7: the closed sludge drying heat pump unit comprises a frame 1 and a forming box 11 arranged on the frame 1, a drying mechanism 12 is arranged at the side of the forming box 11, and an extrusion mechanism 3 and a granulating cylinder 2 are arranged on the forming box 11;
the granulating cylinder 2 can rotate and is positioned in the forming box 11, the axis of the granulating cylinder 2 is arranged in a horizontal state, one end of the granulating cylinder 2, which is close to the drying mechanism 12, is provided with an opening 24, and the granulating cylinder 2 is provided with a plurality of forming holes 21 which are equidistantly encircling the axis of the granulating cylinder 2 and a plurality of baffles 22 which extend along the axis of the granulating cylinder 2 and are fixedly connected to the outer wall of the granulating cylinder 2;
the extrusion mechanism 3 is positioned at the top of the granulation cylinder 2, the extrusion mechanism 3 can slide along the radial direction of the granulation cylinder 2, the extrusion mechanism 3 is used for extruding the sludge received between two adjacent baffles 22, and the extrusion mechanism 3 is in transmission connection with the granulation cylinder 2;
the bottom in the forming box 11 is provided with a U-shaped filter screen 113 which is matched with the granulating cylinder 2.
When the sludge is dried, the sludge is firstly thrown into the forming box 11 from the feed inlet 111 through an external screw feeding mechanism, the sludge falls on the granulating cylinder 2 after entering the forming box 11, a baffle 22 connected with the outer wall of the granulating cylinder 2 is driven by the rotation of the granulating cylinder 2, the sludge is driven to rotate in the forming box 11 through the rotation of the baffle 22, when the sludge passes through a filter screen 113 at the bottom of the forming box 11, a part of water in the sludge is filtered out from the filter screen 113 under the action of gravity and centrifugal force, and simultaneously the sludge also moves along the inner wall of the forming box 11 along with the continuous movement of the baffle 22, because the extruding mechanism 3 is in transmission connection with the granulating cylinder 2, when the sludge rotates to the top of the forming box 11, the extruding mechanism 3 slides along the radial direction of the granulating cylinder 2, the sludge received between the two baffles 22 is extruded, the extruded sludge is extruded from the forming holes 21 on the granulating cylinder 2 due to the limitation of the baffles 22 at the two sides, the sludge enters the granulating cylinder 2 in a strip shape or a granule shape, the shape of the sludge is limited by the pressure of the extruding mechanism 3 on the sludge, the water in the sludge is discharged at the same time of extrusion, the water flows to the bottom of the forming box 11 along the inner wall of the forming box 11 under the action of gravity, the water flow passes through the filter screen 113 and is discharged from the water outlet 112 at the bottom of the forming box 11, the granular sludge entering the granulating cylinder 2 rotates together with the granulating cylinder 2 at the moment, finally the granular sludge enters the drying mechanism 12 from the opening 24 of the granulating cylinder 2 under the action of centrifugal force, the drying mechanism 12 is used for drying the formed sludge, through the steps, partial water in the sludge is discharged in advance when the sludge is molded and granulated, so that the time required for drying the sludge subsequently is reduced, the efficiency of drying the sludge is improved, the energy consumption of the drying mechanism 12 is reduced, meanwhile, due to the arrangement of pre-extruding the sludge for discharging water, the drying mechanism 12 required subsequently is reduced, the occupied space of the whole equipment is reduced, and the investment of cost is reduced; the setting that extrusion mechanism 3 and prilling section of thick bamboo 2 transmission are connected can reduce the further input of cost, compare in the extrusion mode among the prior art, it is not continuous extrusion to mud, make and need not to install the mechanism that is used for cutting off mud additional on equipment, and can cooperate the rotation of prilling section of thick bamboo 2 to change the shape of mud, convenient operation, when extrusion mechanism 3 once can not extrude whole mud, the mud can continue to rotate in shaping case 11 along with the removal of prilling section of thick bamboo 2 after remaining two baffles 22, it can be thrown away under gravity and centrifugal force effect, just with the further discharge moisture content of mud, avoid the problem of jam shaping hole 21 simultaneously, improve the stability of equipment.
As shown in fig. 4, 6 and 9: all baffles 22 are hollow structures, and filter membranes for removing water from sludge are arranged on the inner walls of two adjacent baffles 22.
Through baffle 22 hollow structure and its inner wall be the setting of filter membrane for solid part can be saved in the mud, when extrusion mechanism 3 extrudees the mud between two adjacent baffles 22, the moisture content in the mud can be discharged from the filter membrane on baffle 22, simultaneously mud also can be discharged from shaping hole 21, make the moisture content of mud can be better discharge, if both sides baffle 22 can not drain, the water content of mud can be higher when passing through shaping hole 21, the time overlength that needs when causing the follow-up to mud to dry easily, the too big problem of energy consumption, through the setting of filter membrane, make mud can have certain moisture content in order to self shaping transportation to drying mechanism 12 of being convenient for, can get rid of the unnecessary moisture content of mud again, also can improve to mud drying efficiency when improving equipment stability.
As shown in fig. 4, 7 to 10: the one end that opening 24 of granulation section of thick bamboo 2 was kept away from to the bottom of baffle 22 is provided with delivery port 221, the inside of granulation section of thick bamboo 2 is provided with drainage box 23, be provided with outlet pipe 231 and the drain pipe 232 the same and one-to-one of delivery port 221 quantity on the drainage box 23, the one end that keeps away from opening 24 on the granulation section of thick bamboo 2 sets up rotation axis 29, rotation axis 29 is the rotatable connection of horizontality in shaping case 11, rotation axis 29 is hollow setting, drainage box 23 fixed connection is kept away from the one end of opening 24 in the inside of granulation section of thick bamboo 2, and one of them one end of outlet pipe 231 runs through and is connected with drainage box 23 through the inside of rotation axis 29, the other end and the outside water pumping mechanism rotation of outlet pipe 231 are connected, the drain pipe 232 equidistance encircles and sets up on drainage box 23.
Through the setting of the hollow structure of rotation axis 29 for the water pipe 231 can pass rotation axis 29 and the inside drainage box 23 of shaping case 11 to be connected, when extrusion mechanism 3 extrudees the mud between two adjacent baffles 22, the inside moisture content of mud can be absorbed by baffle 22, the absorption moisture content can be discharged from delivery port 221, leave in drainage box 23 through drain pipe 232, collect the water in all baffles 22 through drainage box 23, finally be taken away by outside pumping device through outlet pipe 231, avoid the water in baffle 22 to follow the rotation of prilling section of thick bamboo 2 through pumping mechanism and can improve the stability of equipment, can reduce the rivers that flow away along shaping case 11 inner wall, avoid rivers to get into in the prilling section of thick bamboo 2, cause the mud moisture content after the shaping to increase, make rivers can directly be collected away, improve the drainage efficiency to the mud, make follow-up can promote to the drying efficiency of mud, reduce the energy consumption to the mud drying process, reduce the input of cost.
As shown in fig. 9: the bottom of the baffle 22 is inclined, and the end of the baffle 22, which is close to the opening 24 of the prilling cylinder 2, is higher than the end of the baffle, which is far from the opening 24 of the prilling cylinder 2.
Through the inclined arrangement of the bottom of the baffle 22, water flow can flow to the water outlet 221 rapidly under the action of gravity after flowing into the baffle 22, so that the water flow is collected by the water drainage box 23 conveniently, the water drainage efficiency is improved, and the energy consumption of an external water pumping mechanism can be reduced.
As shown in fig. 2 to 5, 11 and 12: the extrusion mechanism 3 comprises an extrusion plate 31, a mounting plate 33 and two guide rods 32, wherein the two guide rods 32 are arranged at the bottom of the forming box 11 in a vertical state and can slide, the extrusion plate 31 is fixedly connected to the bottoms of the two guide rods 32 in a horizontal state, the mounting plate 33 is fixedly connected to the tops of the two guide rods 32, elastic pieces 321 are sleeved on the tops of the two guide rods 32, and the mounting plate 33 is in transmission connection with the granulating cylinder 2.
The movement of the mounting plate 33 can be driven through the rotation of the granulating cylinder 2, the two guide rods 32 connected with the granulating cylinder are driven through the movement of the mounting plate 33, the extruding plate 31 is driven under the limit of the guide rods 32, the extruding plate 31 slides along the axis of the guide rods 32, the sludge between two adjacent baffles 22 is extruded through the extruding plate 31, the rotating speed of the granulating cylinder 2 can be matched through the arrangement of the mounting plate 33 and the granulating cylinder 2 in a transmission connection mode, the extruding mechanism 3 can be conveniently matched, the extruding plate 31 can accurately extrude the sludge between two adjacent baffles 22 in the rotating beat of the granulating cylinder 2, the equipment can synchronously operate, the stability of the equipment is improved, the debugging of the equipment is reduced, the burden of workers is lightened, the extruding plate 31 can be provided with a plurality of convex strips 311 for preventing the sludge from adhering to the bottom of the extruding plate 31, the possibility of the sludge adhering to the bottom of the extruding plate 31 is reduced, the elastic piece 321 is conveniently arranged, the speed of the extruding mechanism 3 can be further prolonged, and the service life of the equipment can be further prolonged.
As shown in fig. 2 to 5, 11 and 12: the mounting plate 33 is provided with a transmission assembly 34 in transmission connection with the prilling cylinder 2.
The transmission assembly 34 comprises a connecting rod 341, an eccentric wheel 342, a fixed shaft 331 and a driving shaft 343, wherein the eccentric wheel 342 is rotatably positioned beside a rotating shaft 29 of the granulating cylinder 2, the eccentric wheel 342 is in transmission connection with the rotating shaft 29, the driving shaft 343 is horizontally fixedly connected to one side, far away from the center of the circle, of the eccentric wheel 342, the fixed shaft 331 is horizontally fixedly connected to one end, close to the rotating shaft 29, of the mounting plate 33, two ends of the connecting rod 341 are respectively sleeved on the fixed shaft 331 and the driving shaft 343, the rotating shaft 29 is driven through rotation of the granulating cylinder 2, the eccentric wheel 342 is driven by the rotating shaft 29 to rotate around the circular shape, the connecting rod 341 is driven through rotation of the driving shaft 343, the movement of the connecting rod 341 drives the fixed shaft 331 connected to the other end of the rotating shaft, thereby driving the mounting plate 33 connected with the fixed shaft 331, and the movement of the pressing plate 31 fixedly connected with the rotating shaft 33 is driven through the movement of the mounting plate 33, so that the pressing plate 31 slides along the axial direction of the rotating shaft 32, thereby driving the whole pressing mechanism 3, the pressing plate 31 can press sludge, the drying efficiency of the sludge can be improved, the water consumption of the sludge can be reduced, and the subsequent drying cost can be reduced for drying operation can be reduced.
As shown in fig. 2 and 3: the upper part of the forming box 11 is provided with an air inlet pipe 114 connected to the drying mechanism 12.
In prior art, can carry out the reutilization to supersaturated steam in drying mechanism 12, make it dry the back to the mud in letting in drying mechanism 12, can last the use heat, reduce the consumption of energy, through the setting of intake pipe 114, make the gas after the drying can let in shaping case 11, make the gas after the drying can preheat the mud in the granulation section of thick bamboo 2, make its inside moisture content can carry out certain stoving to the mud when the exhaust, further reduction is follow-up to the waiting time of the dry operation of mud, improve the drying efficiency to the mud, reduce follow-up energy consumption to the mud, thereby further reduce the input of cost.
As shown in fig. 4, 6 and 7: the granulating cylinder 2 is provided with a discharge pipe 25 extending to the drying mechanism 12, the discharge pipe 25 is rotationally connected with the granulating cylinder, and a spiral blade 26 for driving sludge to move towards the discharge pipe 25 is arranged in the granulating cylinder 2.
Through the setting of arranging material pipe 25 for in the mud in the granulation section of thick bamboo 2 can be accurate lets in stoving mechanism 12, the bottom of arranging material pipe 25 is provided with bin outlet 251, be connected row material pipe 25 and stoving mechanism 12, because row material pipe 25 is connected with the granulation section of thick bamboo rotation, can carry out accurate throwing in to mud, be convenient for evenly place mud on the conveyer belt in stoving mechanism 12, the setting of cooperation spiral leaf 26 again, make the granular mud that is located granulation section of thick bamboo 2 can remove to row material pipe 25 along with the rotation of spiral leaf 26, finally follow the bin outlet 251 and discharge, avoid the commodity circulation to splash out granulation section of thick bamboo 2 along with the rotation of granulation section of thick bamboo 2, improve the heated area of mud and stoving mechanism 12, make mud can be dried more fast, improve drying efficiency, reduce the energy consumption to the mud drying process, reduce the input of cost.
As shown in fig. 2, 5 and 13: the outer side of the discharge pipe 25 is sleeved with a gear ring 27, and the top of the forming box 11 is provided with a driving mechanism 28 for driving the gear ring 27 to rotate.
The driving mechanism 28 further comprises a mounting seat 281, a rotary driving motor 282, a gear 283 and a mounting shaft 284, wherein the mounting seat 281 is fixedly connected to the top of the forming box 11 body, the rotary driving motor 282 is fixedly connected to the mounting seat 281, an output shaft of the rotary driving motor 282 penetrates through the mounting seat 281, the mounting shaft 284 can rotate and is located on the outer side wall of the forming box 11 and beside the gear ring 27, the gear 283 is sleeved on the mounting shaft 284, the gear 283 is meshed with the gear ring 27, the mounting shaft 284 is in transmission connection with an output shaft of the rotary driving motor 282 through a synchronous belt 285, when the granulating drum 2 is required to be driven to rotate, the output shaft of the rotary driving motor 282 drives the mounting shaft 284 connected with the rotary driving motor through the synchronous belt 285, the gear 283 connected with the rotary driving motor 282 is driven through the mounting shaft 284, the gear 27 meshed with the gear 283 is driven to rotate through the gear 283, and the granulating drum 2 is driven to rotate through the gear ring 27, and the gear 27 and the rotary shaft 29 of the granulating drum 2 can be stably mounted on the forming box 11 in a horizontal state.
As shown in fig. 2 to 7: a sludge drying method of a closed sludge drying heat pump unit is applied to the closed sludge drying heat pump unit, and comprises the following steps:
s1, putting sludge into a forming box 11 by an external spiral feeding mechanism, enabling the sludge to fall on a granulating cylinder 2 after entering the forming box 11, driving a baffle 22 on the outer wall of the granulating cylinder to rotate by the rotation of the granulating cylinder 2, and driving the sludge to rotate in the forming box 11 by the baffle 22;
s2, when the sludge moves to the bottom of the forming box 11, the filter screen 113 can remove part of water in the sludge;
s3, when the sludge moves to the top of the forming box 11, the extruding mechanism 3 slides along the radial direction of the granulating cylinder 2, so that the sludge received between the two baffles 22 is extruded, and the extruded sludge is extruded from the forming holes 21 on the granulating cylinder 2 due to the limitation of the baffles 22 at the two sides, so that the sludge enters the granulating cylinder 2 in a strip shape or a granule shape;
s4a, repeating the steps S2 and S3 until the sludge is completely extruded into the granulating cylinder 2;
s4b, the sludge in the granulating cylinder 2 rotates along with the granulating cylinder 2, and finally enters the drying mechanism 12 from the opening 24 of the granulating cylinder 2.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The closed sludge drying heat pump unit comprises a frame (1) and a forming box (11) arranged on the frame (1), and is characterized in that a drying mechanism (12) is arranged beside the forming box (11), and an extrusion mechanism (3) and a granulating cylinder (2) are arranged on the forming box (11);
the granulating cylinder (2) can rotate and is positioned in the forming box (11), the axis of the granulating cylinder (2) is horizontally arranged, one end, close to the drying mechanism (12), of the granulating cylinder (2) is provided with an opening (24), the granulating cylinder (2) is provided with a plurality of forming holes (21) which are equidistantly encircling the axis of the granulating cylinder (2) and a plurality of baffles (22) which extend along the axis of the granulating cylinder (2) and are fixedly connected to the outer wall of the granulating cylinder (2);
the extrusion mechanism (3) is positioned at the top of the granulating cylinder (2), the extrusion mechanism (3) can slide along the radial direction of the granulating cylinder (2), the extrusion mechanism (3) is used for extruding the sludge received between two adjacent baffles (22), and the extrusion mechanism (3) is in transmission connection with the granulating cylinder (2);
the bottom in the forming box (11) is provided with a U-shaped filter screen (113) matched with the granulating cylinder (2).
2. A closed sludge drying heat pump unit according to claim 1, wherein all baffles (22) are hollow structures, and filter membranes for removing water from sludge are arranged on the inner walls of two adjacent baffles (22).
3. The closed sludge drying heat pump unit according to claim 2, wherein one end of the bottom of the baffle plate (22) far away from the opening (24) of the granulating cylinder (2) is provided with a water outlet (221), the inside of the granulating cylinder (2) is provided with a water discharging box (23), the water discharging box (23) is provided with a water outlet pipe (231) and water discharging pipes (232) which are the same in number and in one-to-one correspondence with the water outlets (221), one end of the granulating cylinder (2) far away from the opening (24) is provided with a rotating shaft (29), the rotating shaft (29) is rotatably connected in the forming box (11), the rotating shaft (29) is hollow, the water discharging box (23) is fixedly connected to one end of the granulating cylinder (2) far away from the opening (24), one end of the water discharging pipe (231) penetrates through the inside of the rotating shaft (29) to be connected with the water discharging box (23), the other end of the water discharging pipe (231) is rotatably connected with an external water pumping mechanism, and the water discharging pipes (232) are equidistantly arranged around the water discharging box (23).
4. A closed sludge drying heat pump unit according to claim 3, wherein the bottom of the baffle plate (22) is inclined, and one end of the opening (24) of the baffle plate (22) close to the granulating cylinder (2) is higher than one end of the opening (24) of the baffle plate far away from the granulating cylinder (2).
5. The closed sludge drying heat pump unit according to claim 1, wherein the extrusion mechanism (3) comprises an extrusion plate (31), a mounting plate (33) and two guide rods (32), the two guide rods (32) are arranged at the bottom of the forming box (11) in a vertical state and can slide, the extrusion plate (31) is fixedly connected to the bottoms of the two guide rods (32) in a horizontal state, the mounting plate (33) is fixedly connected to the tops of the two guide rods (32), elastic pieces (321) are sleeved on the tops of the two guide rods (32), and the mounting plate (33) is in transmission connection with the granulating cylinder (2).
6. A closed sludge drying heat pump assembly according to claim 5, characterized in that the mounting plate (33) is provided with a transmission assembly (34) in transmission connection with the prilling cylinder (2).
7. A closed sludge drying heat pump assembly according to any one of claims 1-6, wherein the upper part of the forming box (11) is provided with an air inlet pipe (114) connected with the drying mechanism (12).
8. The closed sludge drying heat pump unit according to claim 7, wherein a discharging pipe (25) extending to the drying mechanism (12) is arranged on the granulating cylinder (2), the discharging pipe (25) is rotationally connected with the granulating cylinder, and a spiral blade (26) for driving sludge to move towards the discharging pipe (25) is arranged inside the granulating cylinder (2).
9. A closed sludge drying heat pump unit according to claim 8, characterized in that the outer side of the discharge pipe (25) is sleeved with a gear ring (27), and the top of the forming box (11) is provided with a driving mechanism (28) for driving the gear ring (27) to rotate.
10. A sludge drying method of a closed sludge drying heat pump unit, applied to the closed sludge drying heat pump unit according to any one of claims 1 to 9, characterized by comprising the following steps:
s1, putting sludge into a forming box (11) by an external spiral feeding mechanism, putting the sludge into the forming box (11), and then, falling the sludge on a granulating cylinder (2), wherein a baffle plate (22) on the outer wall of the granulating cylinder is driven to rotate by the rotation of the granulating cylinder (2), and the sludge is driven to rotate in the forming box (11) by the baffle plate (22);
s2, when the sludge moves to the bottom of the forming box (11), the filter screen (113) can remove part of water in the sludge;
s3, when the sludge moves to the top of the forming box (11), the extruding mechanism (3) enables the sludge received between the two baffles (22) to be extruded by sliding along the radial direction of the granulating cylinder (2), and the extruded sludge can be extruded from the forming holes (21) on the granulating cylinder (2) due to the limitation of the baffles (22) at the two sides, so that the sludge enters the granulating cylinder (2) in a strip shape or a granule shape;
s4a, repeating the steps S2 and S3 until the sludge is completely extruded into the granulating cylinder (2);
s4b, the sludge in the granulating cylinder (2) rotates along with the granulating cylinder (2), and finally enters the drying mechanism (12) from an opening (24) of the granulating cylinder (2).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116444124A (en) * | 2023-06-15 | 2023-07-18 | 泰州明锋资源再生科技有限公司 | Automatic circulation drying equipment |
| CN117105508A (en) * | 2023-10-24 | 2023-11-24 | 上海东石塘再生能源有限公司 | Sludge drying and granulating device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107397052A (en) * | 2017-08-16 | 2017-11-28 | 南宁众创空间科技有限公司 | A kind of feed manufacturing extruding and pelletizing plant |
| KR101847084B1 (en) * | 2016-10-14 | 2018-04-09 | 주식회사 경은 | Devices to reduce the weight and volume of food waste |
| CN209352755U (en) * | 2018-10-19 | 2019-09-06 | 江苏绿川环保科技有限公司 | Grain forming desiccation apparatus for mud granulizing |
| CN210528753U (en) * | 2019-09-06 | 2020-05-15 | 宝莹环保科技(杭州)有限公司 | Sludge drying granulator |
| CN211497363U (en) * | 2020-05-25 | 2020-09-15 | 海口宜坤环境技术有限公司 | Sludge dewatering device |
| CN211754732U (en) * | 2019-11-11 | 2020-10-27 | 南京三美农业发展有限公司 | High efficiency fertilizer extrusion prilling granulator |
| CN212246725U (en) * | 2020-06-24 | 2020-12-29 | 厦门科享源环境技术有限公司 | Powerful sludge squeezing and dewatering device |
| CN112358159A (en) * | 2020-11-18 | 2021-02-12 | 天津五洲同创空调制冷设备有限公司 | Low-temperature heat pump sludge drying machine with squeezing and water filtering functions |
| CN214327532U (en) * | 2020-12-28 | 2021-10-01 | 郑州紫盈节能环保科技有限公司 | Sludge drying machine |
-
2023
- 2023-02-14 CN CN202310110760.7A patent/CN116217038B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101847084B1 (en) * | 2016-10-14 | 2018-04-09 | 주식회사 경은 | Devices to reduce the weight and volume of food waste |
| CN107397052A (en) * | 2017-08-16 | 2017-11-28 | 南宁众创空间科技有限公司 | A kind of feed manufacturing extruding and pelletizing plant |
| CN209352755U (en) * | 2018-10-19 | 2019-09-06 | 江苏绿川环保科技有限公司 | Grain forming desiccation apparatus for mud granulizing |
| CN210528753U (en) * | 2019-09-06 | 2020-05-15 | 宝莹环保科技(杭州)有限公司 | Sludge drying granulator |
| CN211754732U (en) * | 2019-11-11 | 2020-10-27 | 南京三美农业发展有限公司 | High efficiency fertilizer extrusion prilling granulator |
| CN211497363U (en) * | 2020-05-25 | 2020-09-15 | 海口宜坤环境技术有限公司 | Sludge dewatering device |
| CN212246725U (en) * | 2020-06-24 | 2020-12-29 | 厦门科享源环境技术有限公司 | Powerful sludge squeezing and dewatering device |
| CN112358159A (en) * | 2020-11-18 | 2021-02-12 | 天津五洲同创空调制冷设备有限公司 | Low-temperature heat pump sludge drying machine with squeezing and water filtering functions |
| CN214327532U (en) * | 2020-12-28 | 2021-10-01 | 郑州紫盈节能环保科技有限公司 | Sludge drying machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116444124A (en) * | 2023-06-15 | 2023-07-18 | 泰州明锋资源再生科技有限公司 | Automatic circulation drying equipment |
| CN116444124B (en) * | 2023-06-15 | 2023-09-01 | 泰州明锋资源再生科技有限公司 | Automatic circulation drying equipment |
| CN117105508A (en) * | 2023-10-24 | 2023-11-24 | 上海东石塘再生能源有限公司 | Sludge drying and granulating device |
| CN117105508B (en) * | 2023-10-24 | 2023-12-29 | 上海东石塘再生能源有限公司 | Sludge drying and granulating device |
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|---|---|
| CN116217038B (en) | 2024-02-20 |
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